Improper input validation in MediaWiki

CVE-2017-8814

The language converter in MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2 allows attackers to replace text inside tags via a rule definition followed by "a lot of junk."

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.016 (73.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N.

Affected products

  • Mediawiki — versions 1.28.0, 1.28.1, 1.28.2
  • Debian Debian_linux — versions 9.0
  • N/a Mediawiki Before 1.27.4, 1.28.x 1.28.3, And 1.29.x 1.29.2 — versions MediaWiki before 1.27.4, 1.28.x before 1.28.3, and 1.29.x before 1.29.2

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-8814?
CVE-2017-8814 is a high-severity vulnerability in MediaWiki, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2017-11-15.
How severe is CVE-2017-8814?
High severity. CVSS v3 base score is 7.5 out of 10.